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18 papers
Photoionized features in the X-ray spectrum of EX Hydrae
G. J. M. Luna, J. C. Raymond, N. S. Brickhouse +4
We present the first results from a long (496 ks) Chandra High Energy Transmission Grating observation of the intermediate polar EX Hydrae. In addition to the narrow emission lines…
Updated Spin Ephemeris for the Cataclysmic Variable EX Hydrae
C. W. Mauche, N. S. Brickhouse, R. Hoogerwerf +3
Historical optical data are combined with more recent optical, extreme ultraviolet, and X-ray data to update the spin ephemeris of the cataclysmic variable EX Hya.
Accretion column structure of magnetic cataclysmic variables from X-ray spectroscopy
R. Hoogerwerf, N. S. Brickhouse, C. W. Mauche
Using Chandra HETG data we present light curves for individual spectral lines of Mg XI and Mg XII for EX Hydrae, an intermediate-polar type cataclysmic variable. The Mg XI light cu…
X-ray Light Curves and Accretion Disk Structure of EX Hydrae
R. Hoogerwerf, N. S. Brickhouse, C. W. Mauche
We present X-ray light curves for the cataclysmic variable EX Hydrae obtained with the Chandra High Energy Transmission Grating Spectrometer and the Extreme Ultraviolet Explorer De…
An Assessment of the Fe XVIII and Fe XIX Line Ratios from the Chandra Grating Observations of Capella
P. Desai, N. S. Brickhouse, J. J. Drake +8
Observations of Fe XVIII and Fe XIX X-ray, EUV, and FUV line emission, formed at the peak of Capella's (alpha Aurigae) emission measure distribution and ubiquitous in spectra of ma…
Inferring coronal structure from X-ray lightcurves and Doppler shifts: a Chandra study of AB Doradus
G. A. J. Hussain, N. S. Brickhouse, A. K. Dupree +6
The Chandra X-ray observatory monitored the single cool star, AB Doradus, continuously for a period lasting 88 ksec (1.98 Prot) in 2002 December with the LETG/HRC-S. The X-ray ligh…